Abstract: Solid-amine-loaded porous adsorbents were prepared via loading tetraethylenepentamine (TEPA) and ethylene glycol diglycidyl ether (GDE) into the porous polyester. TEPA and GDE reacted in the porous polyester and solid amine would generate. By using element analysis and infrared spectroscopy, it was confirmed that a large amount of TEPA was loaded into porous polyester, and TEPA reacted with GDE in the porous poly ester. By using scanning electron microscopy and nitrogen adsorption isotherms, it could be confirmed that there were many interconnected-pore retained after the organic amine loaded into the polyester, while the micro-mesopore volume and specific surface areas of polyester were reduced significantly. As carbon dioxide (CO₂) adsorbents, it was found that the adsorption process of these solid-amine-loaded porous absorbents were controlled by kinetic. The capacity of the adsorbent could reach to 40.1 mg/g (10 kPa, 80℃) when the molar ratio of TEPA to GDE was 1.8:1. However, the adsorbent with the molar ratio of TEPA to GDE as 1.5:1 showed excellent cycle stability, the adsorption capacity could be retained as 97% of the capacity in first cycle after 100 absorption - desorption cycles.